defective- deficient

daily / once a day / every day

data

day / date

deadly / deathly

debut

decaf

defective / deficient

definite / definitive

delusion / illusion

denote / connote

deprecate / depreciate

dessert / desert

die / dead

directions

disinterested / uninterested

dress / get dressed / be dressed in /
put on / wear

drive-through / drive-in

during / for


	defective / deficient

A.	defective는 결함이 있는 또는 하자가 있는 을 의미하는 것으로 질적인 문제이다.
1.	A defective part stopped the machine from working yesterday.
2.	One of the tires was defective.
3.	A watch with defective parts will not keep time.
4.	Merchants will give refunds on any damaged or defective merchandise.

B.	deficient는 모자라는 또는 불 충분한 을 의미하는 것으로 양적인 문제이다.
1.	My diet is deficient in calcium.
2.	Her diet is deficient in protein.
3.	His knowledge of science is deficient.
4.	South Korea is a country deficient in natural resources.

A defective part stopped the machine from working yesterday.

Her diet is deficient in protein.